If you use a social network long enough it really becomes extremely hard to do. I honestly find it harder to quit all social networks than quit some drugs. I uninstall/reinstalled the same social networks sometime multiples times a day, I often closed a social network webpage only to instinctively retype the url seconds later. The only thing that kinda works for me is software that block all social medias.

I suggest you read "Hooked: How to Build Habit-Forming Products.".